//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <unordered_set>

// Call erase(const_iterator position) with invalid iterators

// REQUIRES: has-unix-headers
// UNSUPPORTED: !libcpp-has-legacy-debug-mode, c++03

#include <unordered_set>

#include "check_assertion.h"

int main(int, char**) {
  // With end()
  {
    int a1[] = {1, 2, 3};
    std::unordered_multiset<int> l1(a1, a1 + 3);
    std::unordered_multiset<int>::const_iterator i = l1.end();
    TEST_LIBCPP_ASSERT_FAILURE(
        l1.erase(i), "unordered container erase(iterator) called with a non-dereferenceable iterator");
  }

  // With iterator from another container
  {
    int a1[] = {1, 2, 3};
    std::unordered_multiset<int> l1(a1, a1 + 3);
    std::unordered_multiset<int> l2(a1, a1 + 3);
    std::unordered_multiset<int>::const_iterator i = l2.begin();
    TEST_LIBCPP_ASSERT_FAILURE(
        l1.erase(i), "unordered container erase(iterator) called with an iterator not referring to this container");
  }

  return 0;
}
